Tables and Figures
- Figure 1.Scoring methods for plant-based diet indices
- Figure 2. Illustration of simulated main and validation study
- Figure 3. Spearman correlation matrix between plant-based diet
- Figure 4. Scatter plots with calibration coeffients of estimates
- Figure 5.Percentage of bias in estimated OR before correcting for measurement error
- Figure 6.RMSE in beta estimates before and after correcting for measurement error
- Figure 7.Coverage probability of beta estimates before and after
- Figure 8.Percentage of bias in estimated OR before and after correcting for measurement error
- Table1. Summary statistics of the dietary exposures derived from FFQs and dietary records
- Table2. Reproducibility and validity results
Figure 1.Scoring methods for plant-based diet indices
+means higher intakes receive higher scores; - means higher
intakes receive lower scores
1. Healthful plant food group (n=7): whole grains, fruits,
vegetables, nuts, legumes, vegetable oils, tea & coffee
2. Unhealthful plant food group (n=5): fruit juices , refined
grains, potatoes, sugar-sweetened beverage, sweets and
desserts
3. Animal Food Group (n=6): animal fat, dairy, egg, fish or seafood,
meat (red, processed meat, poultry), miscellaneous animal-based
foods
Figure 2. Illustration of simulated main and validation study
Figure 3. Spearman correlation matrix between plant-based diet
indices and their scoring components, using the FFQ2
Figure 4. Scatter plots with calibration coeffients of estimates
from the average of the two dietary records against FFQ 2 estimates
A: Plots for three plant-based diet indices
B: Plots for scoring components of plant-based diet
Figure 5.Percentage of bias in estimated OR before correcting for measurement error
Figure 6.RMSE in beta estimates before and after correcting for measurement error
Coverage probability of beta estimates before and after correcting for measurement error
Figure 7.Coverage probability of beta estimates before and after
correcting for measurement error
Figure 8.Percentage of bias in estimated OR before and after correcting for measurement error
Table1. Summary statistics of the dietary exposures derived from FFQs and dietary records
| X. | pdi | hpdi | updi | hplant | uplant | tplant | animal |
|---|---|---|---|---|---|---|---|
| (N=742) | (N=742) | (N=742) | (N=742) | (N=742) | (N=742) | (N=742) | |
| FFQ1 | 53.0 [6.46] | 54.5 [7.58] | 53.9 [8.04] | 20.5 [5.27] | 14.2 [4.41] | 34.8 [7.13] | 17.8 [4.16] |
| Missing | 17 (2.3%) | 17 (2.3%) | 17 (2.3%) | 17 (2.3%) | 17 (2.3%) | 17 (2.3%) | 17 (2.3%) |
| FFQ2 | 52.8 [6.52] | 54.5 [7.95] | 53.9 [7.97] | 20.5 [5.34] | 14.2 [4.52] | 34.6 [7.34] | 18.2 [4.06] |
| DR_wk1 | 53.5 [6.57] | 55.3 [7.53] | 53.5 [7.95] | 21.0 [5.12] | 14.1 [3.71] | 35.0 [5.92] | 17.6 [3.88] |
| Missing | 4 (0.5%) | 4 (0.5%) | 4 (0.5%) | 4 (0.5%) | 4 (0.5%) | 4 (0.5%) | 4 (0.5%) |
| DR_wk2 | 53.6 [6.40] | 54.4 [7.36] | 53.8 [7.57] | 20.9 [5.00] | 14.6 [3.65] | 35.5 [5.85] | 17.9 [3.63] |
| Missing | 7 (0.9%) | 7 (0.9%) | 7 (0.9%) | 7 (0.9%) | 7 (0.9%) | 7 (0.9%) | 7 (0.9%) |
Table2. Reproducibility and validity results
| vararible | ICC_FFQs | ICC_DRs | validity_FFQ2 |
|---|---|---|---|
| pdi | 0.69 | 0.57 | 0.47 |
| hpdi | 0.77 | 0.56 | 0.63 |
| updi | 0.73 | 0.62 | 0.61 |
| hplant | 0.76 | 0.68 | 0.55 |
| uplant | 0.77 | 0.50 | 0.48 |
| tplant | 0.76 | 0.61 | 0.40 |
| animal | 0.54 | 0.50 | 0.30 |